feat: restore caption from send files box

Telegram/SourceFiles/boxes/send_files_box.cpp

@@ -482,7 +482,8 @@ SendFilesBox::SendFilesBox(
 	const TextWithTags &caption,
 	not_null<PeerData*> toPeer,
 	Api::SendType sendType,
-	SendMenu::Details sendMenuDetails)
+	SendMenu::Details sendMenuDetails,
+	Fn<void(const TextWithTags &text)> cancelled2)
 : SendFilesBox(nullptr, {
 	.show = controller->uiShow(),
 	.list = std::move(list),
@@ -492,6 +493,7 @@ SendFilesBox::SendFilesBox(
 	.check = DefaultCheckForPeer(controller, toPeer),
 	.sendType = sendType,
 	.sendMenuDetails = [=] { return sendMenuDetails; },
+	.cancelled2 = cancelled2,
 }) {
 }
 
@@ -510,6 +512,7 @@ SendFilesBox::SendFilesBox(QWidget*, SendFilesBoxDescriptor &&descriptor)
 , _check(std::move(descriptor.check))
 , _confirmedCallback(std::move(descriptor.confirmed))
 , _cancelledCallback(std::move(descriptor.cancelled))
+, _cancelled2Callback(std::move(descriptor.cancelled2))
 , _caption(this, _st.files.caption, Ui::InputField::Mode::MultiLine)
 , _prefilledCaptionText(std::move(descriptor.caption))
 , _scroll(this, st::boxScroll)
@@ -631,6 +634,10 @@ void SendFilesBox::prepare() {
 		if (!_confirmed && _cancelledCallback) {
 			_cancelledCallback();
 		}
+		auto text = _caption->getTextWithAppliedMarkdown();
+		if (!_confirmed && _cancelled2Callback && !text.empty()) {
+			_cancelled2Callback(std::move(text));
+		}
 	}, lifetime());
 
 	setupDragArea();

Telegram/SourceFiles/boxes/send_files_box.h

@@ -102,6 +102,7 @@ struct SendFilesBoxDescriptor {
 	const style::ComposeControls *stOverride = nullptr;
 	SendFilesConfirmed confirmed;
 	Fn<void()> cancelled;
+	Fn<void(const TextWithTags &text)> cancelled2;
 };
 
 class SendFilesBox : public Ui::BoxContent {
@@ -117,7 +118,8 @@ public:
 		const TextWithTags &caption,
 		not_null<PeerData*> toPeer,
 		Api::SendType sendType,
-		SendMenu::Details sendMenuDetails);
+		SendMenu::Details sendMenuDetails,
+		Fn<void(const TextWithTags &text)> cancelled2 = nullptr);
 	SendFilesBox(QWidget*, SendFilesBoxDescriptor &&descriptor);
 
 	void setConfirmedCallback(SendFilesConfirmed callback) {
@@ -272,6 +274,7 @@ private:
 	SendFilesCheck _check;
 	SendFilesConfirmed _confirmedCallback;
 	Fn<void()> _cancelledCallback;
+	Fn<void(const TextWithTags &text)> _cancelled2Callback;
 	rpl::variable<uint64> _price = 0;
 	std::unique_ptr<Ui::RpWidget> _priceTag;
 	QImage _priceTagBg;

Telegram/SourceFiles/history/history_widget.cpp

@@ -6264,7 +6264,8 @@ bool HistoryWidget::confirmSendingFiles(
 		text,
 		_peer,
 		Api::SendType::Normal,
-		sendMenuDetails());
+		sendMenuDetails(),
+		[=](const TextWithTags &text) { _field->setTextWithTags(text); });
 	_field->setTextWithTags({});
 	box->setConfirmedCallback(crl::guard(this, [=](
 			Ui::PreparedList &&list,

Telegram/SourceFiles/history/view/history_view_replies_section.cpp

@@ -1085,7 +1085,8 @@ bool RepliesWidget::confirmSendingFiles(
 		_composeControls->getTextWithAppliedMarkdown(),
 		_history->peer,
 		Api::SendType::Normal,
-		sendMenuDetails());
+		sendMenuDetails(),
+		[=](const TextWithTags &text) { _composeControls->setText(text); });
 
 	box->setConfirmedCallback(crl::guard(this, [=](
 			Ui::PreparedList &&list,

Telegram/SourceFiles/history/view/history_view_scheduled_section.cpp

@@ -572,7 +572,8 @@ bool ScheduledWidget::confirmSendingFiles(
 		(CanScheduleUntilOnline(_history->peer)
 			? Api::SendType::ScheduledToUser
 			: Api::SendType::Scheduled),
-		SendMenu::Details());
+		SendMenu::Details(),
+		[=](const TextWithTags &text) { _composeControls->setText(text); });
 
 	box->setConfirmedCallback(crl::guard(this, [=](
 		Ui::PreparedList &&list,

Telegram/SourceFiles/settings/business/settings_shortcut_messages.cpp

@@ -1353,7 +1353,8 @@ bool ShortcutMessages::confirmSendingFiles(
 		_composeControls->getTextWithAppliedMarkdown(),
 		_history->peer,
 		Api::SendType::Normal,
-		SendMenu::Details());
+		SendMenu::Details(),
+		[=](const TextWithTags &text) { _composeControls->setText(text); });
 
 	box->setConfirmedCallback(crl::guard(this, [=](
 			Ui::PreparedList &&list,